.main {
	width: 960px;
	margin: 0 auto;
}

.leftcolumn {
	float: left;
	width: 240px;
	min-height: 800px;
	background-color: rgb(212, 23, 299);
}

.centercolumn {
	margin-left: 240px;
	margin-right: 240px;
	min-height: 800px;
	width: 470px;
	background-color: rgb(221, 239, 299);
}

.rightcolumn {
	float: right;
	min-height: 800px;
	width: 240px;
	background-color: rgb(212, 233, 49);
}